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ECAP加工に供したZK60マグネシウム合金の腐食特性
https://doi.org/10.14988/pa.2020.0000000085
https://doi.org/10.14988/pa.2020.00000000854d56b27b-0e33-4e0a-beb3-11d415220d76
名前 / ファイル | ライセンス | アクション |
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023061010001.pdf (3.8 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||||||||||||
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公開日 | 2020-05-28 | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | ja | |||||||||||||||||
タイトル | ECAP加工に供したZK60マグネシウム合金の腐食特性 | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | ja-Kana | |||||||||||||||||
タイトル | ECAP カコウ ニ キョウシタ ZK60 マグネシウム ゴウキン ノ フショク トクセイ | |||||||||||||||||
タイトル | ||||||||||||||||||
言語 | en | |||||||||||||||||
タイトル | Corrosion properties of ZK60 alloys processed by equal channel angular pressing | |||||||||||||||||
言語 | ||||||||||||||||||
言語 | jpn | |||||||||||||||||
キーワード | ||||||||||||||||||
主題 | マグネシウム合金, 腐食, 組織, 強ひずみ加工 magnesium alloys, corrosion, microstructure, sever plastic deformation |
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資源タイプ | ||||||||||||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
資源タイプ | departmental bulletin paper | |||||||||||||||||
ID登録 | ||||||||||||||||||
ID登録 | 10.14988/pa.2020.0000000085 | |||||||||||||||||
ID登録タイプ | JaLC | |||||||||||||||||
アクセス権 | ||||||||||||||||||
アクセス権 | open access | |||||||||||||||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||||||||||||
著者 |
馬島, 正成
× 馬島, 正成× 湯浅, 元仁
WEKO
25973
× 宮本, 博之
WEKO
21518
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著者所属 | ||||||||||||||||||
ja | ||||||||||||||||||
馬島, 正成 / Graduate School of Science and Engineering, Doshisha University | ||||||||||||||||||
著者所属 | ||||||||||||||||||
ja | ||||||||||||||||||
湯浅, 元仁 / 同志社大学理工学部機械理工学科准教授 | ||||||||||||||||||
著者所属 | ||||||||||||||||||
ja | ||||||||||||||||||
宮本, 博之 / 同志社大学理工学部機械システム工学科教授 | ||||||||||||||||||
抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | ECAP加工されたMg–5.5mass%Zn–0.6mass%Zr(ZK60)合金の腐食特性について、5mass%NaCl水溶液での浸漬試験と動的分極測定を用いて調べた。ECAP加工のパス数を増やすと、ECAP加工されたZK60合金の腐食速度は増加した。分極曲線の結果から、ECAPパスの増加に伴い、カソード反応が活性化されるとともに、浸漬試験中に形成された不動態皮膜が弱められたことを示唆した。これは、ECAP加工中の金属間化合物と転位密度の増加が腐食速度が増加した原因である可能性を示唆している。573Kで1.5時間熱処理すると、ECAP加工されたZK60合金の腐食速度は大幅に低下した。これは、熱処理により転位密度が減少し、不動態皮膜の特性が改善したことが原因であると考えられる。 | |||||||||||||||||
言語 | ja | |||||||||||||||||
抄録 | ||||||||||||||||||
内容記述タイプ | Abstract | |||||||||||||||||
内容記述 | Corrosion properties of Mg–5.5mass%Zn–0.6mass%Zr (ZK60) alloys processed by equal channel angular pressing (ECAP) was investigated using immersion tests and potentiodynamic polarization measurements in 5 mass% NaCl aqueous solution. The corrosion rates of ECAPed ZK60 alloys increased by increasing number of ECAP passes. The result of potentiodynamic polarization curves showed that cathodic reaction was activated, and a passive film formed during immersion tests was weakened, by increasing ECAP passes. The increased corrosion rate can be due to increasing intermetallic compounds and dislocation density during ECAP process. After heat treatment at 573 K for 1.5 h, the corrosion rates of ECAPed ZK60 alloys were significantly reduced. This is because the heat treatment decreased dislocation density, leading to the improvement of the passive film. | |||||||||||||||||
言語 | en | |||||||||||||||||
書誌情報 |
ja : 同志社大学ハリス理化学研究報告 en : The Harris science review of Doshisha University 巻 61, 号 1, p. 1-6, 発行日 2020-04-30 |
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出版者 | ||||||||||||||||||
言語 | ja | |||||||||||||||||
出版者 | 同志社大学ハリス理化学研究所 | |||||||||||||||||
出版者(英) | ||||||||||||||||||
言語 | en | |||||||||||||||||
出版者 | Harris Science Research Institute of Doshisha University | |||||||||||||||||
ISSN | ||||||||||||||||||
収録物識別子タイプ | PISSN | |||||||||||||||||
収録物識別子 | 21895937 | |||||||||||||||||
書誌レコードID | ||||||||||||||||||
収録物識別子タイプ | NCID | |||||||||||||||||
収録物識別子 | AA12716107 | |||||||||||||||||
権利者情報 | ||||||||||||||||||
権利者名 | 同志社大学ハリス理化学研究所 | |||||||||||||||||
言語 | ja | |||||||||||||||||
権利者名 | Harris Science Research Institute of Doshisha University | |||||||||||||||||
言語 | en | |||||||||||||||||
関連サイト | ||||||||||||||||||
関連タイプ | isFormatOf | |||||||||||||||||
識別子タイプ | URI | |||||||||||||||||
関連識別子 | https://doors.doshisha.ac.jp/opac/opac_link/bibid/SB12902196/?lang=0 | |||||||||||||||||
言語 | ja | |||||||||||||||||
関連名称 | 掲載刊行物所蔵情報へのリンク / Link to Contents | |||||||||||||||||
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内容記述タイプ | Other | |||||||||||||||||
内容記述 | application/pdf | |||||||||||||||||
出版タイプ | ||||||||||||||||||
出版タイプ | VoR | |||||||||||||||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||||||||||||
日本十進分類法 | ||||||||||||||||||
主題 | 565.53 |